1. Product Overview
The PEICHENG WP03B is a compact, portable Bluetooth speaker designed for versatile audio playback. It features IPX5 waterproofing, RGB lighting, and multiple connectivity options including Bluetooth 5.3, TF card, and AUX input. This manual provides instructions for safe and effective use of your speaker.

Image: The PEICHENG WP03B portable Bluetooth speaker, pink in color, shown on a desk next to a laptop, illustrating its compact size and wireless capability.
2. Package Contents
Please check the package for the following items:
- PEICHENG WP03B Portable Bluetooth Speaker
- USB Type-C Charging Cable
- Quick Start Guide
3. Controls and Ports
Familiarize yourself with the speaker's buttons and ports:

Image: A close-up side view of the PEICHENG WP03B speaker, highlighting the control buttons for power, volume, and mode selection.
- Power Button: Press and hold to turn on/off. Short press for play/pause.
- Volume Up (+): Short press to increase volume. Long press for next track.
- Volume Down (-): Short press to decrease volume. Long press for previous track.
- Mode Button (M): Short press to switch between Bluetooth, TF Card, and AUX modes.
- Light Button: Short press to cycle through RGB light modes.
- USB Type-C Port: For charging the speaker.
- TF Card Slot: Insert a Micro SD card for direct audio playback.
- AUX Input: Connect external audio devices via a 3.5mm audio cable.
4. Setup and Initial Use
4.1 Charging the Speaker
Before first use, fully charge the speaker. Connect the provided USB Type-C cable to the speaker's charging port and the other end to a USB power adapter (not included) or a computer's USB port. The charging indicator light will show charging status and turn off when fully charged.

Image: The PEICHENG WP03B speaker with a USB Type-C cable connected for charging, alongside a TF card and AUX cable, demonstrating its multiple input options.
4.2 Powering On/Off
Press and hold the Power button for approximately 3 seconds to turn the speaker on or off. A voice prompt will indicate the power status.
4.3 Bluetooth Pairing
- Turn on the speaker. It will automatically enter Bluetooth pairing mode, indicated by a flashing LED light.
- On your device (smartphone, tablet, laptop), enable Bluetooth and search for available devices.
- Select "WP03B" from the list of devices.
- Once connected, the speaker will emit a confirmation tone, and the LED light will stop flashing.

Image: The PEICHENG WP03B speaker displayed with a wireless signal icon, symbolizing its Bluetooth connectivity and ease of pairing with compatible devices.
4.4 TWS (True Wireless Stereo) Pairing (Optional)
To achieve stereo sound, you can pair two WP03B speakers together:
- Ensure both WP03B speakers are powered on and not connected to any Bluetooth device.
- On one speaker (this will be the primary speaker), double-press the Power button. The speaker will enter TWS pairing mode.
- The two speakers will automatically connect to each other. A confirmation tone will sound once paired.
- Now, connect your device to the primary speaker via Bluetooth as described in section 4.3. Both speakers will play audio in stereo.
5. Operating the Speaker
5.1 Playback Modes
The speaker supports three playback modes:
- Bluetooth Mode: Connect wirelessly to your device (see section 4.3).
- TF Card Mode: Insert a Micro SD card (up to 32GB, FAT32 format) with MP3 audio files into the TF card slot. The speaker will automatically switch to TF card mode and begin playback.
- AUX Mode: Connect an external audio source (e.g., MP3 player) using a 3.5mm audio cable to the AUX input port. The speaker will automatically switch to AUX mode.
Press the Mode (M) button to cycle between these playback modes.
5.2 Audio Control
- Play/Pause: Short press the Power button.
- Volume Adjustment: Short press the '+' button to increase volume, short press the '-' button to decrease volume.
- Next Track: Long press the '+' button.
- Previous Track: Long press the '-' button.
5.3 RGB Lighting
The speaker features integrated RGB lights. Short press the Light Button to cycle through different lighting effects or turn them off. The lights can synchronize with the music.

Image: Two PEICHENG WP03B speakers, one with its front light off and the other with its front light illuminated in a vibrant blue, showcasing the LED color ambient light feature.
5.4 IPX5 Waterproof Feature
The speaker is rated IPX5 waterproof, meaning it is protected against low-pressure water jets from any direction. It is suitable for use in environments like bathrooms (shower) or outdoors in light rain. Do not submerge the speaker in water. Ensure the charging port cover is securely closed before exposing the speaker to water.

Image: The PEICHENG WP03B speaker in pink, surrounded by splashing water, illustrating its IPX5 waterproof capability for use in wet environments.
6. Maintenance and Care
- Cleaning: Wipe the speaker with a soft, damp cloth. Do not use harsh chemicals or abrasive cleaners.
- Storage: Store the speaker in a cool, dry place away from direct sunlight and extreme temperatures.
- Battery Care: To prolong battery life, charge the speaker regularly, even if not in frequent use. Avoid fully discharging the battery for extended periods.
- Water Protection: Always ensure the charging port cover is sealed when not charging, especially when near water.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Speaker does not turn on. | Low battery. | Charge the speaker for at least 30 minutes. |
| Cannot pair via Bluetooth. | Speaker not in pairing mode; device Bluetooth off; too far from speaker. | Ensure speaker is in pairing mode (flashing LED). Turn on Bluetooth on your device. Move device closer to speaker (within 10 meters). |
| No sound. | Volume too low; incorrect mode selected; audio source issue. | Increase speaker and device volume. Press 'M' button to select correct mode. Check audio source playback. |
| TWS pairing fails. | Speakers already connected to another device; incorrect pairing procedure. | Ensure both speakers are disconnected from other devices. Follow TWS pairing steps precisely (Section 4.4). |
| RGB lights not working. | Lights turned off; malfunction. | Short press the Light button to cycle through modes. If issue persists, contact support. |
8. Specifications
| Feature | Detail |
|---|---|
| Model Name | WP03B |
| Bluetooth Version | 5.3 |
| Speaker Output Power | 5 Watts |
| Waterproof Rating | IPX5 |
| Playback Modes | Bluetooth, TF Card, AUX |
| Battery Type | 1 Lithium Ion (included) |
| Product Dimensions | 1.6"D x 2.9"W x 3"H |
| Item Weight | 0.17 Kilograms (5.9 ounces) |
| Control Method | Touch (buttons) |
| Frequency Response | 20 KHz |
| Compatible Devices | Laptop, MP3 Player, Smartphone, Tablet |
9. Warranty Information
The PEICHENG WP03B Portable Bluetooth Speaker comes with a Limited Warranty. Please refer to the Quick Start Guide included in your package or contact PEICHENG customer support for specific warranty terms and conditions.
10. Customer Support
For any questions, technical assistance, or warranty claims, please contact PEICHENG customer support through the retailer where you purchased the product or visit the official PEICHENG website for contact information.
Please retain your purchase receipt for warranty purposes.



